/tags/microsoft/Recent content in Microsoft on IT AdminHugoen-usSun, 27 Sep 2026 00:00:00 +0000/posts/post-6/Sun, 27 Sep 2026 00:00:00 +0000/posts/post-6/<p>A practical reference for connecting PowerShell to Exchange Online and Microsoft Graph from Linux (Fedora), plus the exact commands used during the SUSF admin MFA registration and legacy auth hardening project.</p> <hr> <h2 id="one-time-setup-on-fedora">One-Time Setup on Fedora</h2> <h3 id="install-powershell-7">Install PowerShell 7</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>sudo dnf install powershell </span></span></code></pre></div><p>If not in Fedora&rsquo;s repos, add Microsoft&rsquo;s repo first:</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>sudo rpm --import https://packages.microsoft.com/keys/microsoft.asc </span></span><span style="display:flex;"><span>curl -sSL -o /etc/yum.repos.d/microsoft.repo https://packages.microsoft.com/config/rhel/9/prod.repo </span></span><span style="display:flex;"><span>sudo dnf install powershell </span></span></code></pre></div><h3 id="launch-powershell">Launch PowerShell</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>pwsh </span></span></code></pre></div><h3 id="trust-psgallery-first-run-only">Trust PSGallery (First Run Only)</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-powershell" data-lang="powershell"><span style="display:flex;"><span>Set-PSRepository -Name PSGallery -InstallationPolicy Trusted </span></span></code></pre></div><hr> <h2 id="connecting-to-exchange-online">Connecting to Exchange Online</h2> <h3 id="install-module-once">Install module (once)</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-powershell" data-lang="powershell"><span style="display:flex;"><span>Install-Module -Name ExchangeOnlineManagement -Scope CurrentUser </span></span></code></pre></div><h3 id="connect">Connect</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-powershell" data-lang="powershell"><span style="display:flex;"><span>Import-Module ExchangeOnlineManagement </span></span><span style="display:flex;"><span>Connect-ExchangeOnline -UserPrincipalName itadmin@yourdomain.onmicrosoft.com </span></span></code></pre></div><p>Uses a browser/device-code sign-in flow.</p>